| /* |
| * Copyright (c) 2011 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| */ |
| |
| #include <common.h> |
| #include <config.h> |
| #include <tpm.h> |
| |
| /* Import the header files from vboot_reference. */ |
| #include <tss_constants.h> |
| #include <vboot_api.h> |
| |
| VbError_t VbExTpmInit(void) |
| { |
| if (tis_init()) |
| return TPM_E_IOERROR; |
| /* tpm_lite lib doesn't call VbExTpmOpen after VbExTpmInit. */ |
| return VbExTpmOpen(); |
| } |
| |
| VbError_t VbExTpmClose(void) |
| { |
| if (tis_close()) |
| return TPM_E_IOERROR; |
| return TPM_SUCCESS; |
| } |
| |
| VbError_t VbExTpmOpen(void) |
| { |
| if (tis_open()) |
| return TPM_E_IOERROR; |
| return TPM_SUCCESS; |
| } |
| |
| VbError_t VbExTpmSendReceive(const uint8_t* request, uint32_t request_length, |
| uint8_t* response, uint32_t* response_length) |
| { |
| if (tis_sendrecv(request, request_length, response, response_length)) |
| return TPM_E_IOERROR; |
| return TPM_SUCCESS; |
| } |
